Differential
Pressure Switch
Series: 908
Description
Specifications
Description
Series 908 — Adjustable differential switching for liquids and gases
For process and heating circuits, the 908 offers adjustable switching in robust mbar ranges (40–200 mbar; 150–1,000 mbar) and supports liquids and gases—including aggressive media when specified. Brass G 1/8 pressure connections and diaphragm options (EPDM / NBR / FKM / silicone) align materials to your medium and temperature.
Maximum operating pressure: 10 bar
Burst pressure: 20bar
Specifications
Medium | Air and other non‑combustible, non‑aggressive gases (HVAC/air‑side applications). |
| Pressure Ranges |
|
| Ambient temperature | –20…+85 °C |
Pressure Ranges
| Matrix | Pressure Ranges |
|---|---|
| 2 | 40 to 200 mbar |
| 4 | 150 to 1000 mbar |
Diaphragm Material
Different applications require different membrane material. We are happy to help chose the right fit for you.
| Matrix | Membrane |
|---|---|
| 1 | NBR |
| 2 | EPDM |
| 3 | Silicone |
| 4 | FKM/FPM |
Protection Cap options
- Without protection cap 0
- Protection cap IP54 with cable conduit M16 1
- Protection cap IP65 with cable conduit M16 2
- Protection cap IP54 with connector, Shape A, to EN 175301-803, with cable 3
- Protection cap IP65 with connector, Shape A, to EN 175301-803, with cable 4
- Protection cap IP54 with connector, Shape A, to EN 175301-803, without cable 5
- Protection cap IP65 with connector, Shape A, to EN 175301-803, without cable
